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From: Lee Jones <lee.jones@linaro.org>
To: Russ Weight <russell.h.weight@intel.com>
Cc: mdf@kernel.org, linux-fpga@vger.kernel.org,
	linux-kernel@vger.kernel.org, trix@redhat.com,
	lgoncalv@redhat.com, yilun.xu@intel.com, hao.wu@intel.com,
	matthew.gerlach@intel.com
Subject: Re: [PATCH v1 06/12] fpga: add max10 secure update functions
Date: Tue, 8 Sep 2020 09:05:27 +0100	[thread overview]
Message-ID: <20200908080527.GB4400@dell> (raw)
In-Reply-To: <20200904235305.6254-7-russell.h.weight@intel.com>

On Fri, 04 Sep 2020, Russ Weight wrote:

> Extend the MAX10 BMC Security Engine driver to include
> the functions that enable secure updates of BMC images,
> FPGA images, etc.
> 
> Signed-off-by: Russ Weight <russell.h.weight@intel.com>
> Reviewed-by: Wu Hao <hao.wu@intel.com>
> ---
>  drivers/fpga/intel-m10-bmc-secure.c | 272 +++++++++++++++++++++++++++-
>  include/linux/mfd/intel-m10-bmc.h   | 101 +++++++++++
>  2 files changed, 372 insertions(+), 1 deletion(-)

>  /**
>   * struct intel_m10bmc_retimer_pdata - subdev retimer platform data
>   *
> @@ -64,7 +131,10 @@ struct intel_m10bmc {
>   *
>   * m10bmc_raw_read - read m10bmc register per addr
>   * m10bmc_raw_bulk_read - bulk_read max10 registers per addr
> + * m10bmc_raw_bulk_write - bulk_write max10 registers per addr
> + * m10bmc_raw_update_bits - update max10 register per addr
>   * m10bmc_sys_read - read m10bmc system register per offset
> + * m10bmc_sys_update_bits - update max10 system register per offset
>   */
>  static inline int
>  m10bmc_raw_read(struct intel_m10bmc *m10bmc, unsigned int addr,
> @@ -94,7 +164,38 @@ m10bmc_raw_bulk_read(struct intel_m10bmc *m10bmc, unsigned int addr,
>  	return ret;
>  }
>  
> +static inline int
> +m10bmc_raw_bulk_write(struct intel_m10bmc *m10bmc, unsigned int addr,
> +		      void *val, size_t cnt)
> +{
> +	int ret;
> +
> +	ret = regmap_bulk_write(m10bmc->regmap, addr, val, cnt);
> +	if (ret)
> +		dev_err(m10bmc->dev, "fail to write raw reg %x cnt %zx: %d\n",
> +			addr, cnt, ret);
> +
> +	return ret;
> +}
> +
> +static inline int
> +m10bmc_raw_update_bits(struct intel_m10bmc *m10bmc, unsigned int addr,
> +		       unsigned int msk, unsigned int val)
> +{
> +	int ret;
> +
> +	ret = regmap_update_bits(m10bmc->regmap, addr, msk, val);
> +	if (ret)
> +		dev_err(m10bmc->dev, "fail to update raw reg %x: %d\n",
> +			addr, ret);
> +
> +	return ret;
> +}
> +

I really do dislike abstraction for abstraction's sake.

What's stopping you from just using the Regmap API in-place?

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

  parent reply	other threads:[~2020-09-08  8:05 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 23:52 [PATCH v1 00/12] Intel FPGA Security Manager Class Driver Russ Weight
2020-09-04 23:52 ` [PATCH v1 01/12] fpga: fpga security manager class driver Russ Weight
2020-09-04 23:57   ` Randy Dunlap
2020-09-05  0:23   ` Moritz Fischer
2020-09-05  0:44     ` Russ Weight
2020-09-05 13:39       ` Wu, Hao
2020-09-05 19:09   ` Tom Rix
     [not found]     ` <ebf251a0-5f13-d1a1-6915-e3c940bb19fe@intel.com>
2020-09-10 21:51       ` Tom Rix
2020-09-10 23:05         ` Russ Weight
2020-09-16 20:16   ` Moritz Fischer
2020-09-30 20:54     ` Russ Weight
2020-10-01  0:31       ` Moritz Fischer
2020-10-01  1:07         ` Russ Weight
2020-10-01 19:07           ` Moritz Fischer
2020-09-04 23:52 ` [PATCH v1 02/12] fpga: create intel max10 bmc security engine Russ Weight
2020-09-05  0:01   ` Randy Dunlap
2020-09-05  0:05     ` Russ Weight
2020-09-05 20:22   ` Tom Rix
2020-09-14 19:07     ` Russ Weight
2020-09-14 20:48       ` Tom Rix
2020-09-14 21:40         ` Russ Weight
2020-09-16 20:33   ` Moritz Fischer
2020-09-30 23:14     ` Russ Weight
2020-09-04 23:52 ` [PATCH v1 03/12] fpga: expose max10 flash update counts in sysfs Russ Weight
2020-09-05 20:39   ` Tom Rix
2020-09-16 18:37     ` Russ Weight
2020-09-04 23:52 ` [PATCH v1 04/12] fpga: expose max10 canceled keys " Russ Weight
2020-09-05 20:52   ` Tom Rix
2020-09-04 23:52 ` [PATCH v1 05/12] fpga: enable secure updates Russ Weight
2020-09-05 22:04   ` Tom Rix
     [not found]     ` <1d90bfb6-417c-55df-9290-991c391158a9@intel.com>
2020-09-20 15:24       ` Tom Rix
2020-09-04 23:52 ` [PATCH v1 06/12] fpga: add max10 secure update functions Russ Weight
2020-09-06 16:10   ` Tom Rix
2020-09-22  1:15     ` Russ Weight
2020-09-08  8:05   ` Lee Jones [this message]
2020-09-04 23:53 ` [PATCH v1 07/12] fpga: expose sec-mgr update status Russ Weight
2020-09-06 16:16   ` Tom Rix
2020-09-22 22:31     ` Russ Weight
2020-09-04 23:53 ` [PATCH v1 08/12] fpga: expose sec-mgr update errors Russ Weight
2020-09-06 16:27   ` Tom Rix
2020-09-22 23:42     ` Russ Weight
2020-09-23 12:52       ` Tom Rix
2020-09-04 23:53 ` [PATCH v1 09/12] fpga: expose sec-mgr update size Russ Weight
2020-09-06 16:39   ` Tom Rix
2020-09-04 23:53 ` [PATCH v1 10/12] fpga: enable sec-mgr update cancel Russ Weight
2020-09-06 17:00   ` Tom Rix
     [not found]     ` <678f8d39-a244-42d0-4c56-91eb859b43f0@intel.com>
2020-09-23 13:02       ` Tom Rix
2020-09-04 23:53 ` [PATCH v1 11/12] fpga: expose hardware error info in sysfs Russ Weight
2020-09-06 17:06   ` Tom Rix
2020-09-04 23:53 ` [PATCH v1 12/12] fpga: add max10 get_hw_errinfo callback func Russ Weight
2020-09-06 17:14   ` Tom Rix
2020-09-24 21:48     ` Russ Weight
2020-09-05 14:13 ` [PATCH v1 00/12] Intel FPGA Security Manager Class Driver Wu, Hao
2020-10-01 20:42   ` Russ Weight
2020-09-05 16:10 ` Tom Rix
2020-09-05 17:16 ` Tom Rix
2020-10-01  0:19   ` Russ Weight

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